| /************************************************************************* | |
| * * | |
| * $Id: flashwriter2.c 1941 2008-06-13 05:31:03Z hharte $ * | |
| * * | |
| * Copyright (c) 2007-2008 Howard M. Harte. * | |
| * http://www.hartetec.com * | |
| * * | |
| * Permission is hereby granted, free of charge, to any person obtaining * | |
| * a copy of this software and associated documentation files (the * | |
| * "Software"), to deal in the Software without restriction, including * | |
| * without limitation the rights to use, copy, modify, merge, publish, * | |
| * distribute, sublicense, and/or sell copies of the Software, and to * | |
| * permit persons to whom the Software is furnished to do so, subject to * | |
| * the following conditions: * | |
| * * | |
| * The above copyright notice and this permission notice shall be * | |
| * included in all copies or substantial portions of the Software. * | |
| * * | |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * | |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * | |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * | |
| * NONINFRINGEMENT. IN NO EVENT SHALL HOWARD M. HARTE BE LIABLE FOR ANY * | |
| * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * | |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * | |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * | |
| * * | |
| * Except as contained in this notice, the name of Howard M. Harte shall * | |
| * not be used in advertising or otherwise to promote the sale, use or * | |
| * other dealings in this Software without prior written authorization * | |
| * Howard M. Harte. * | |
| * * | |
| * SIMH Interface based on altairz80_hdsk.c, by Peter Schorn. * | |
| * * | |
| * Module Description: * | |
| * Vector Graphic, Inc. FlashWriter II module for SIMH * | |
| * * | |
| * Environment: * | |
| * User mode only * | |
| * * | |
| *************************************************************************/ | |
| /*#define DBG_MSG*/ | |
| #include "altairz80_defs.h" | |
| #ifdef DBG_MSG | |
| #define DBG_PRINT(args) sim_printf args | |
| #else | |
| #define DBG_PRINT(args) | |
| #endif | |
| extern int32 sio0s(const int32 port, const int32 io, const int32 data); | |
| extern int32 sio0d(const int32 port, const int32 io, const int32 data); | |
| extern uint32 sim_map_resource(uint32 baseaddr, uint32 size, uint32 resource_type, | |
| int32 (*routine)(const int32, const int32, const int32), uint8 unmap); | |
| static char ansibuf[10]; | |
| #define FW2_MAX_BOARDS 4 | |
| #define UNIT_V_FW2_VERBOSE (UNIT_V_UF + 1) /* verbose mode, i.e. show error messages */ | |
| #define UNIT_FW2_VERBOSE (1 << UNIT_V_FW2_VERBOSE) | |
| #define FW2_CAPACITY (2048) /* FlashWriter II Memory Size */ | |
| typedef struct { | |
| UNIT *uptr; /* UNIT pointer */ | |
| uint8 cur_FL_Row; /* Current Flashwriter Row */ | |
| uint8 cur_FL_Col; /* Current Flashwriter Column */ | |
| uint8 FL_Row; | |
| uint8 FL_Col; | |
| uint8 reversevideo; /* Flag set if reverse video is currently on */ | |
| uint8 M[FW2_CAPACITY]; /* FlashWriter 2K Video Memory */ | |
| } FW2_INFO; | |
| static FW2_INFO *fw2_info[FW2_MAX_BOARDS]; | |
| static uint8 port_map[FW2_MAX_BOARDS] = { 0x11, 0x15, 0x17, 0x19 }; | |
| static int32 fw2dev(const int32 Addr, const int32 rw, const int32 data); | |
| static t_stat fw2_attach(UNIT *uptr, char *cptr); | |
| static t_stat fw2_detach(UNIT *uptr); | |
| static uint8 FW2_Read(const uint32 Addr); | |
| static uint8 FW2_Write(const uint32 Addr, uint8 cData); | |
| static t_stat get_base_address(char *cptr, uint32 *baseaddr); | |
| static UNIT fw2_unit[] = { | |
| { UDATA (NULL, UNIT_FIX + UNIT_ATTABLE + UNIT_DISABLE + UNIT_ROABLE, FW2_CAPACITY) }, | |
| { UDATA (NULL, UNIT_FIX + UNIT_ATTABLE + UNIT_DISABLE + UNIT_ROABLE, FW2_CAPACITY) }, | |
| { UDATA (NULL, UNIT_FIX + UNIT_ATTABLE + UNIT_DISABLE + UNIT_ROABLE, FW2_CAPACITY) }, | |
| { UDATA (NULL, UNIT_FIX + UNIT_ATTABLE + UNIT_DISABLE + UNIT_ROABLE, FW2_CAPACITY) } | |
| }; | |
| #define FWII_NAME "Vector Graphic Flashwriter 2 FWII" | |
| static MTAB fw2_mod[] = { | |
| /* quiet, no warning messages */ | |
| { UNIT_FW2_VERBOSE, 0, "QUIET", "QUIET", NULL, NULL, NULL, | |
| "No verbose messages for unit " FWII_NAME "n" }, | |
| /* verbose, show warning messages */ | |
| { UNIT_FW2_VERBOSE, UNIT_FW2_VERBOSE, "VERBOSE", "VERBOSE", NULL, NULL, NULL, | |
| "Verbose messages for unit " FWII_NAME "n" }, | |
| { 0 } | |
| }; | |
| DEVICE fw2_dev = { | |
| "FWII", fw2_unit, NULL, fw2_mod, | |
| FW2_MAX_BOARDS, 10, 31, 1, FW2_MAX_BOARDS, FW2_MAX_BOARDS, | |
| NULL, NULL, NULL, | |
| NULL, &fw2_attach, &fw2_detach, | |
| NULL, (DEV_DISABLE | DEV_DIS), 0, | |
| NULL, NULL, FWII_NAME | |
| }; | |
| /* Attach routine */ | |
| static t_stat fw2_attach(UNIT *uptr, char *cptr) | |
| { | |
| t_stat r; | |
| unsigned int i = 0; | |
| uint32 baseaddr; | |
| char *tptr; | |
| r = get_base_address(cptr, &baseaddr); | |
| if(r != SCPE_OK) /* error? */ | |
| return r; | |
| DBG_PRINT(("%s\n", __FUNCTION__)); | |
| for(i = 0; i < FW2_MAX_BOARDS; i++) { | |
| if(&fw2_dev.units[i] == uptr) { | |
| if(uptr->flags & UNIT_FW2_VERBOSE) { | |
| sim_printf("Attaching unit %d at %04x\n", i, baseaddr); | |
| } | |
| break; | |
| } | |
| } | |
| fw2_info[i] = calloc(1, sizeof(FW2_INFO)); | |
| fw2_info[i]->uptr = uptr; | |
| fw2_info[i]->uptr->u3 = baseaddr; | |
| if(sim_map_resource(baseaddr, FW2_CAPACITY, RESOURCE_TYPE_MEMORY, &fw2dev, FALSE) != 0) { | |
| sim_printf("%s: error mapping MEM resource at 0x%04x\n", __FUNCTION__, baseaddr); | |
| return SCPE_ARG; | |
| } | |
| if(sim_map_resource(0x00, 1, RESOURCE_TYPE_IO, &sio0s, FALSE) != 0) { | |
| sim_printf("%s: error mapping I/O resource at 0x%04x\n", __FUNCTION__, 0x00); | |
| return SCPE_ARG; | |
| } | |
| if(sim_map_resource(0x01, 1, RESOURCE_TYPE_IO, &sio0d, FALSE) != 0) { | |
| sim_printf("%s: error mapping I/O resource at 0x%04x\n", __FUNCTION__, 0x01); | |
| return SCPE_ARG; | |
| } | |
| tptr = (char *) malloc (strlen (cptr) + 3); /* get string buf */ | |
| if (tptr == NULL) | |
| return SCPE_MEM; /* no more mem? */ | |
| sprintf(tptr, "0x%04x", baseaddr); /* copy base address */ | |
| uptr->filename = tptr; /* save */ | |
| uptr->flags = uptr->flags | UNIT_ATT; | |
| return SCPE_OK; | |
| } | |
| /* Detach routine */ | |
| static t_stat fw2_detach(UNIT *uptr) | |
| { | |
| uint8 i; | |
| DBG_PRINT(("%s\n", __FUNCTION__)); | |
| for(i = 0; i < FW2_MAX_BOARDS; i++) { | |
| if(&fw2_dev.units[i] == uptr) { | |
| break; | |
| } | |
| } | |
| if (i >= FW2_MAX_BOARDS) | |
| return SCPE_ARG; | |
| /* Disconnect FlashWriter2: unmap memory and I/O resources */ | |
| sim_map_resource(fw2_info[i]->uptr->u3, FW2_CAPACITY, RESOURCE_TYPE_MEMORY, &fw2dev, TRUE); | |
| sim_map_resource(0x00, 1, RESOURCE_TYPE_IO, &sio0s, TRUE); | |
| sim_map_resource(0x01, 1, RESOURCE_TYPE_IO, &sio0d, TRUE); | |
| if(fw2_info[i]) { | |
| free(fw2_info[i]); | |
| } | |
| free (uptr->filename); /* free base address string */ | |
| uptr->filename = NULL; | |
| uptr->flags = uptr->flags & ~UNIT_ATT; /* not attached */ | |
| return SCPE_OK; | |
| } | |
| static t_stat get_base_address(char *cptr, uint32 *baseaddr) | |
| { | |
| uint32 b; | |
| sscanf(cptr, "%x", &b); | |
| if(b & (FW2_CAPACITY-1)) { | |
| sim_printf("FWII must be on a %d-byte boundary.\n", FW2_CAPACITY); | |
| return SCPE_ARG; | |
| } | |
| *baseaddr = b & ~(FW2_CAPACITY-1); | |
| return SCPE_OK; | |
| } | |
| extern int32 getBankSelect(void); | |
| /* This is the main entry point into the Flashwriter2 emulation. */ | |
| static int32 fw2dev(const int32 Addr, const int32 rw, const int32 data) | |
| { | |
| int32 bank = getBankSelect(); | |
| if(bank == 0) { | |
| if(rw == 0) { /* Read */ | |
| return(FW2_Read(Addr)); | |
| } else { /* Write */ | |
| return(FW2_Write(Addr, data)); | |
| } | |
| } else | |
| return 0xff; | |
| } | |
| static uint8 FW2_Write(const uint32 Addr, uint8 Value) | |
| { | |
| FW2_INFO *fw2 = NULL; | |
| uint8 FL_Row; | |
| uint8 FL_Col; | |
| uint32 baseaddr = 0; | |
| uint8 i; | |
| uint8 outchar; | |
| uint8 port; | |
| for(i = 0; i < FW2_MAX_BOARDS; i++) { | |
| if(fw2_info[i] != NULL) { | |
| baseaddr = fw2_info[i]->uptr->u3; | |
| if((Addr >= baseaddr) && (Addr < (baseaddr + FW2_CAPACITY))) { | |
| break; | |
| } | |
| } | |
| } | |
| if(i == FW2_MAX_BOARDS) { | |
| return 0; | |
| } | |
| fw2 = fw2_info[i]; | |
| port = port_map[i]; | |
| fw2->M[Addr - baseaddr] = Value; | |
| /* Only print if it is in the visible part of the Flashwriter memory */ | |
| if((Addr >= baseaddr) && (Addr < (baseaddr + (80 * 24)))) { | |
| FL_Col = ((Addr-baseaddr) % 80) + 1; | |
| FL_Row = ((Addr-baseaddr) / 80) + 1; | |
| if(Value & 0x80) { /* reverse video */ | |
| if(fw2->reversevideo == 0) { | |
| fw2->reversevideo = 1; | |
| sprintf(ansibuf, "\x1b[07m"); | |
| for(i=0;i<strlen(ansibuf);i++) { | |
| sio0d(port, 1, ansibuf[i]); | |
| } | |
| } | |
| } else { | |
| if(fw2->reversevideo == 1) { | |
| fw2->reversevideo = 0; | |
| sprintf(ansibuf, "\x1b[00m"); | |
| for(i=0;i<strlen(ansibuf);i++) { | |
| sio0d(port, 1, ansibuf[i]); | |
| } | |
| } | |
| } | |
| outchar = Value & 0x7F; | |
| if(outchar < ' ') { | |
| outchar = 'O'; | |
| } | |
| if(outchar == 0x7F) { /* this is supposed to be a square Block character on FW2 */ | |
| outchar = 'X'; | |
| } | |
| if((fw2->cur_FL_Row == FL_Row) && (FL_Col == fw2->cur_FL_Col + 1)) { | |
| sio0d(port, 1, outchar); | |
| } else { | |
| /* ESC[#;#H */ | |
| sprintf(ansibuf, "\x1b[%d;%dH%c", FL_Row, FL_Col, outchar); | |
| for(i=0;i<strlen(ansibuf);i++) { | |
| sio0d(port, 1, ansibuf[i]); | |
| } | |
| } | |
| fw2->cur_FL_Col = FL_Col; | |
| fw2->cur_FL_Row = FL_Row; | |
| } | |
| return(1); | |
| } | |
| static uint8 FW2_Read(const uint32 Addr) | |
| { | |
| uint32 baseaddr = 0; | |
| uint8 i; | |
| for(i = 0; i < FW2_MAX_BOARDS; i++) { | |
| if(fw2_info[i] != NULL) { | |
| baseaddr = fw2_info[i]->uptr->u3; | |
| if((Addr >= baseaddr) && (Addr < (baseaddr + FW2_CAPACITY))) { | |
| break; | |
| } | |
| } | |
| } | |
| if(i == FW2_MAX_BOARDS) { | |
| return 0xFF; | |
| } | |
| return(fw2_info[i]->M[Addr - baseaddr]); | |
| } |